Storage-battery plate.



D, J. CARWRIGHT, Non AAAAAAAA Rv mm.

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To all whom t may concern:

Be it known that I, DAVID J. GARTWRIGHT,

a citizen of the United States, Vresiding at Easton, in the .county of Northampton and vState of Pennsylvania, have invented new and useful Improvements in Storage-BatteryV Plates,

of which the following is a specification.

The present invention relates to storagel battery plates. j

This application is a continuation asto common subject-matter of my application Serial No. 671,193, led January 15, 11919,.

One of theiobjects of the present'invention is to provide a Plante plate of such proportions as tolessen the vertical vgrowth in Fig. 2 represents an obvious modification of the plate illustrated in Fig. l.

The individual Plante plates 1 are preftank on suitable blocks of insulating mate'- rial 2. The plates are considerably greater in Width than in height. Ordinarily, Plante plates are greater in height than' in width and the ribs run vertically. Plante plates tend to grow in a direction longitudinal of the ribs, Which is vertically. 'In a plate ofr the novel proportions which I have illustrated, the ribs, which are indicated by the numeral 3, also run vertically, but the vertical vgrowth is reduced, the capacity of the plate being maintained, however, as the area of the plate may be the same as the area of a rectangular plate .of the old form.

In certain classes of service, Plante plates `grow so much that they have to be trimmed about once a year. I have found that with vmy improved construction, under similar conditions, the plates need not be trimmed more than once every three years.

By increasing the Width of the plates, and accordingly, the width of the jars, I.1ncrease the horizontal area of the jars and thereby l Specification of fett-ers 4Patent. i

Application sled February 21, i916.

1ra-vri .ncsrwnren'r, or Beeren, .PE4rinsing'venire,I .assrsuon ro u. s. im-.Grrr anser onrotAv/tlfoiv, or insegna FALLS, NEW YORK, A coaroaa'rion or nsw Yoan.

yrammed ira-1. at, rei-tf.. seriai No. 73,563.

increase the quantity yof acid above the plates. As a result, the lowering of the acid level, due to evaporation, is slower with my improved construction than in the old construction. Consequently, it is not necessary to flush the jars as often as with previous storage batteries. Furthermore, with an increased area of the bottom of the jars and a decreased height of the plates, the accumulation and depositot' sediment on the bottom is not as rapid per unit of area. In other words, the accumulation does not rise so rapidlyY as in previous storage batteries of the same capacity.

In assembling the battery'plates in the box, plates of the saine polarity in a given cell are all provided with a.' 'commonterminal member, after the manner of the ordinary construction.

One embodiment of the present invention has been illustrated in the drawings. Many modications will occur to those skilled in the art, which modiiications will fall within the scope of the invention as defined in the 4,

appended claims.

lVha-t I claim as new and desire to secure by Letters Patent of the United States, is-

1. A Plante plate for storage batteries,

l u said plate having vertical ribs on the surface erably supported above the bottom of the to increase the superficial area thereof and being greater injwidth than in height whereby Vertical growth of a plate of given capacity is lessened during continued service.

2. A Plante plate for storage batteries, said plate including a central conducting web or support having one of its linear di mensions greater than the other, and a plu-- rality of vertical fins or ribs formed on each face of said central web to increase the superficial area of said plate, said vertical .tins or ribs extending' across the plate at ing tank of Oreater length than height, 'a plurality of lant plates arranged vertiprovided With a plurality of ribs or iins on both faces thereof, said fins extending ver-` ticvally at right angles to the greatest dimenv4-sion of said plate, whereby growth of .said

proportion to the areatliereof is 10 plate in lessened, A y In'witness whereof, I have hereunto subscribed my name.

DAVID J. CARTWRIGHT. 

